feat(sources): fetch linked URLs for the 252 spreadsheet-only cases

Until now only cases 357+ (plus a few older ones) had their linked URLs
fetched; the other 252 dossiers held just the text pasted into the
spreadsheet, often only the lede. This pass fetches every linked URL for
those cases so the full text is on file before link rot takes it.

- stage_all.py: new --include-sheet-cases flag that lifts the skip on
  cases holding spreadsheet articles. Resumable as before.
- staging/: raw extracts and index.json for the 252 cases.
- sourced-articles.json, case-files-manifest.json: 188 new UNTRIMMED
  blocks. 179 cases gained at least one fetched article; 73 got none
  (49 BLOCKED, 18 THIN, 9 DEAD, 4 video/social, 3 ERROR).
- sources/*.txt: rebuilt with build_cases.py --all. Sheet pastes are
  kept; fetched blocks sit beside them under the NOT YET TRIMMED banner.
  Files previously committed with CRLF are now LF.
- wayback-availability.json: Wayback snapshots exist for 73 of the 98
  failed URL slots; input for an archive-fetch pass.
- README-START-HERE.md: progress note and next step.

verify_all.py PASSES (1836 checks).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GZZENdTLzNGsbNy4DyF1yt

merge-output/staging/180/01_cointelegraph-com.txt

@@ -0,0 +1,35 @@
+Malaysian kidnappers abducted Chinese man for $1M USDT: Report
+
+Written by Arijit Sarkarformer writerReviewed by Felix Ngstaff editor
+
+Six Malaysian nationals, including a couple, have been charged with kidnapping a Chinese citizen and demanding a ransom of $1 million in USDT.
+
+Six Malaysian nations — a married couple and four individuals — were charged with kidnapping a Chinese national and demanding a ransom of 4.44 million Malaysian ringgits ($1 million) in Tether’s USDT stablecoin.
+
+The accused, aged between 25 and 29, allegedly kidnapped the man at one of the exit points of an expressway connecting the cities of Kuala Lumpur and Putrajaya on July 11. The group then demanded a ransom of 1 million Tether (USDT) tokens for the victim’s release.
+
+The charge sheet alleges the wrongful detention of the Chinese man for a ransom amounting to 1,007,696 USDT, according to local media outlet Malay Mail.
+
+On Aug. 15, the six accused pleaded not guilty to the abduction charges. However, Judge Amir Effendy denied bail to the alleged kidnappers and set the next court hearing for Oct. 8. He ruled:
+
+“After considering all arguments and the nature of the charges, the court has decided that bail will not be granted.”
+
+Meanwhile, local police are also working to track down four additional suspects connected to the abduction, all of whom are members of an 18-person gang of experienced kidnappers.
+
+Selangor police chief Datuk Hussein Omar Khan confirmed that four other members of the gang were shot and killed on Aug. 3 in separate encounters.
+
+If convicted under the Kidnapping Act, the six Malaysians will face a minimum prison sentence of 30 years or a maximum of 40 years and caning.
+
+Deputy Minister of Energy Transition and Water Transformation Akmal Nasrullah Mohd Nasir recently revealed that between 2018 and 2023, $723 million worth of electricity was lost to illegal crypto mining operators.
+
+“The theft of electricity by those who mine cryptocurrency occurs because they believe this activity cannot be detected due to the absence of meters on their premises,” Nasir explained at an event dedicated to destroying 2,022 seized items worth around $467,000, including Bitcoin (BTC) mining machines and electrical equipment.
+
+Magazine: AI may already use more power than Bitcoin — and it threatens Bitcoin mining
+
+Cointelegraph is committed to independent, transparent journalism. This news article is produced in accordance with Cointelegraph’s Editorial Policy and aims to provide accurate and timely information. Readers are encouraged to verify information independently.
+
+MANTRA token sinks 18% to record low amid blockchain halt
+
+HYPE jumps 20% as Trump signals legal US path for Hyperliquid
+
+China adds 8 banks to digital yuan network as operator count hits 30

merge-output/staging/180/index.json

@@ -0,0 +1,16 @@
+[
+  {
+    "case": 180,
+    "n": 1,
+    "field": "url",
+    "url": "https://cointelegraph.com/news/malaysians-kidnap-chinese-demand-1-million-usdt-ransom",
+    "host": "cointelegraph.com",
+    "fetched_at": "2026-09-05T12:50:30+00:00",
+    "verdict": "FETCHED",
+    "method": "raw",
+    "http": 200,
+    "chars": 2783,
+    "sha256": "24b353a4f69044277b7cdc15f7d91a20e4dc45ebcaeaea21f8588bb46e2baea1",
+    "final_url": null
+  }
+]